Which of the following statements is correct? The magnetized state of an iron bar can be destroyed completely by
A
heating the bar to a high temperature
B
breaking the bar
C
connecting opposite poles with a small piece of iron
D
placing the bar inside a strong magnetic field
E
none of the above
Verified Correct Answer: A.
Physical Principles & Numerical Solution
No expanded working has been attached for this question yet. The verified answer is Option A.
Source: Myschool Past Questions Archive (Record #29201)